*적용중인 도장
This group of parameters helps with CPU definitions in case the internal algorithms fail.
This parameter is now excluded. The CPU either does support Turbo, or not.
<key>Turbo</key>
<string>Yes</string>
Some processors do not support this technology. The current version has a detection, which is also printed into the boot log. Systems below Nehalem do not support Turbo mode, even if the CPU itself does.
<key>CpuFrequencyMHz</key>
<string>3200</string>
CPU base frequency in MHz. Usually Clover will get it from DMI, however if it is not accurate, you can override it. A wrong value can cause system instability - synchronisation issues, slowness etc. It is recommended not use this parameter at all.
Most probably this parameter will be excluded in coming revisions due to its dangerous and harmful nature.
<key>BusSpeedkHz</key>
<string>133330</string>
Bus speed in kHz. Very important value for a stable system. It is passed from the boot loader to the kernel. If this value is not correct, the kernel will not start at all. If it is slightly incorrect, clock issues may arise and the system will behave in a strange way.
An automatic detection was introduced with revision 1060, which relies on the ACPI timer producing much more accurate values than the ones stored in DMI.
DMI stores this value in MHz, which is not accurate in contrast to a value calculated from CPU frequency. You can choose a more accurate value, if needed. For example my DMI has a value of 100 MHz, however manually overriding it to a value of 99790 kHz produced better clocks.
Some vendors use a different meaning for BusSpeed and FSBSpeed and use values four times bigger in the BIOS. You can distinguish them according to the scale: either it is from 100 MHz to 400 MHz or it matches the formula CPUFrequency=RailFrequency*CPUMultiplier.
If ASUS uses a rail frequency of 1600 MHz and a multiplier of 8, the formula does not work - a CPU with 12,8 GHz does not exist; a division into 4 is required.
<key>QPI</key>
<string>4800</string>
System Profiler calls it Processor Bus Speed or Bus Speed. Chameleon has an algorithm for calculating this value for Nehalem CPUs (, which is however not correct). Clover has a corrected algorithm according to Intel data sheets. AppleSmbios sources describe two variants: either SMBIOS already contains this value as specified by the vendor, or it is calculated by the formulae BusSpeed*4. After a long argument this value was sourced into the configuration file - write what you want (in MHz). This is a purely cosmetic value. Apparently this value only makes sense for Nehalems, the rest should use the formula stated above - or nothing at all.
<key>ProcessorType</key>
<string>0x0201</string>
This result of this value can only be found in Apple's specification and it is used in the window About this Mac, which is displaying the according processor name. Otherwise "Unknown CPU" will be displayed. An invocation of CPUID was not possible due to PowerPC and due to Apple's different view of the world SMBIOS table 4 is not used either. Clover knows most values but due to the fact that hardware development does not stand still, you can specify this value. Again, this is purely cosmetic.
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